you mentioned burnalways off
you mentioned burnallnamed off
you didn't mention if you were "burn now"
you didn't mention your burncount (this is what i suspect is where you're confused)
because like i said, we do cleaving when we're burning - and we only stop other discs when we're burning.
so somehow, you're burning
if you don't want to burn
don't /ber burnnow, have /ber burnalways off, /ber burnallnamed off, /ber burncount 99
edit: you edited your post after i replied but still doesn't show your burncount.
your burncount is "how many mobs on my xtarget until i start burning", so if this is set to 4 - you'd burn when you have 4 mobs on xtarget, if it is set to 1, you're going to burn anytime you're fighting something